Advertisements
Advertisements
प्रश्न
Evaluate the following, using suitable identity
512
Advertisements
उत्तर
512 = (50 + 1)2
Taking a = 50 and b = 1 we get
(a + b)2 = a2 + 2ab + b2
(50 + 1)2 = 502 + 2(50)(1) + 12
= 2500 + 100 + 1
512 = 2601
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
`(3a - 1/2)(3a - 1/2)`
Using a2 − b2 = (a + b) (a − b), find 1532 − 1472
Factorise the following expressions
x2 + 14x + 49
Factorise the following using suitable identity
36m2 + 60m + 25
Simplify: (a + b)2 + (a – b)2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 14x + 49
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
4x2 + 4x + 1
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
2x3 + 24x2 + 72x
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
`9x^2 + 2xy + y^2/9`
Factorise `x^2 + 1/x^2 + 2 - 3x - 3/x`.
